500X Pressure relief/pressure holding valve

Product Overview

The 500 X pressure relief/holding valve automatically adjusts its opening degree based on control signals from the automation system, thereby regulating the medium flow rate, pressure, temperature, and level to prevent system overpressure or maintain the pressure in fire water supply systems. It is suitable for fire testing circulation systems in high-rise buildings and other water supply systems.

Product Features

The valve body features a streamlined design, resulting in minimal internal head loss.

Systemally pressurized drive, independently operated, utilizing pipeline energy for energy efficiency and environmental protection;

The pressure relief/holding pilot valve features low consumption, precise pressure control, and reliable safety; its single-chamber design ensures smooth valve operation with optimal diaphragm protection.

The direct-flow channel design ensures high flow capacity and minimal water loss, reduces the likelihood of harmful flow patterns, and minimizes cavitation damage.

Technical Parameter

Model: 500 X

Design and Manufacturing Standard: JB 10674-2006

Sealing test pressure: 1.76 MPa

Applicable media: water, steam, oils, etc.

Connection type: Flange connection

Nominal pressure: 1.6 MPa

Shell test pressure: 2.4 MPa

Media temperature: 0–80°C

Connection Standard: JB/T79

Structure size 

Material List